hg: jdk/sandbox: 8204166: TLH: Semaphore may not be destroy until signal have returned.

[chris.hegarty at oracle.com]

Changeset: 9fdfe5ca0e5e
Author:    rehn
Date:      2018-06-19 10:57 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/9fdfe5ca0e5e

8204166: TLH: Semaphore may not be destroy until signal have returned.
Reviewed-by: eosterlund, dholmes

! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/handshake.hpp
! src/hotspot/share/runtime/safepointMechanism.inline.hpp
! src/hotspot/share/runtime/thread.cpp